What position does a left-handed operator usually assume?

The left-handed operator typically assumes the 9 o'clock position when working on the patient's left side. This positioning allows for optimal ergonomics and accessibility to the treatment area while maintaining a comfortable angle for the operator. By sitting at the 9 o'clock position, the operator can effectively use their dominant hand without obstructions, ensuring better control and precision during procedures such as coronal polishing.

In contrast, the other positions do not provide the same level of comfort or access for a left-handed operator. The 3 o'clock position is generally suited for right-handed operators. The 5 o'clock position may not provide sufficient visibility or accessibility, and the 1 o'clock position would be awkward for a left-handed person working on the tooth surfaces on the left side of the patient. Therefore, the 9 o'clock position is the most suitable for left-handed individuals in a dental setting, enhancing both operator efficiency and patient comfort.